Dell 3000MP 4100MP 5100MP Series 30 Pin M1-DA to BNC HDTV Video Cable C4395 0C4395 CN-0C4395. 

Dell Part Number: C4395 0C4395 CN-0C4395
Compatible Models: Dell 3200MP 3300MP 3400MP 4100MP 5100MP Series

Specifications:

1 x Display cable - M1-DA (male) - 15 pin HD D-Sub (male) 4 pin USB Type A (male) 
1 x Display cable - RCA (male) - Mini-phone stereo 3.5 mm 
1 x Audio cable - RCA (male) x 2 - RCA (male) x 3
1 x Audio cable - Mini-phone stereo 3.5 mm - Mini-phone stereo 3.5 mm 
1 x Display cable - 4 pin mini-DIN (male) - 4 pin mini-DIN (male) 
1 x Display cable - M1-DA (male) - RCA (male)